Operational Policy and Procedures

DRVSM Program Overview

  • On January 20, 2005, RVSM was implemented between flight level (FL) 290-410 (inclusive) in the airspace of the lower 48 States of the United States, Alaska, Gulf of Mexico and Atlantic High Offshore Airspace (including Houston and Miami Oceanic airspace) and the San Juan FIR.
  • RVSM was implemented on the same date and at the same flight levels in Canadian Southern Domestic Airspace and in Mexico. (RVSM was implemented in Canadian Northern Domestic Airspace in April 2002).
  • The RVSM program enables vertical separation to be reduced between FL 290-410 (inclusive) from 2,000 ft. to 1,000 ft. RVSM was first implemented in North Atlantic Airspace in 1997. It is now implemented world wide.
  • DRVSM provides user and provider benefits in domestic U.S. operations that have been enjoyed since 1997 in other world airspaces. RVSM makes six additional flight levels available for operations between FL 290-410. It enhances aircraft operating efficiency by making more fuel/time efficient flight levels available; enhances air traffic control flexibility and provides the potential for enhanced enroute airspace capacity.

Maps: Atlantic High Offshore Airspace (MS PowerPoint) | Gulf of Mexico High Offshore Airspace (MS PowerPoint)